A recent study claims that ancient Americans came from Siberia. The new research said that some individuals migrated to America from Siberia about 23,000 years in the past. After the people reached Alaska, the group moved to the North and South America. Siberia, a region in Russia, could have faced the migration of a very large group about 23,000 years in the past. The study suggests that this might have happened at the peak of the last Ice Age.
The new study is contradictory to the favored belief that Europeans or Polynesians were the ones contributing to the genetic heritage of the Native Americans.
After the group of people reached Alaska, they reportedly remained in the north, maybe for a period of thousands of years, before going on to spread through the North and South America, claims the study which has its basis in the genomic analysis. The study discovered that the first individuals to ever reach the Americas made use of a bridge of land between Alaska and Siberia named Beringia.
Yun Song, one of the authors of the study and an associate professor at the University of California, Berkeley said that there is some doubt in the migration dates and the divergence between the southern and northern Amerindian populations. However, with the more sequenced ancient genomes the scientists have at their disposal, they will be capable of reaching more exact dates regarding the times of the migrations.
The analysis was conducted by using three different statistical models and the most detailed genetic data of Native Americans yet. The scientists looked at records of the genomes of 31 Native Americans still living, Siberians and other people surrounding the Pacific Ocean and the sequenced genomes of 23 ancient people from the South and North America, during a time spanning from around 200 to 6,000 years in the past. The scientists claim that their findings are based on that genetic data.
The team of scientists said that the southern and northern Native Americans diverged sometime around 11,500 to 14,500 years in the past. The southern branch populated the South and Central America and a part of the North America.
Rasmus Nielsen, a professor from the California University said that it appears that the diversification of the modern Native Americans began about 13,000 years ago at the time the first culture of Native Americans appear inside the archaeological record, namely the Clovis culture.
The new study claiming that ancient Americans came from Siberia will be published in the upcoming issue of the Science journal.
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